Which Version of IFC Open Shell do I download
Help &gt; Save System Info in Blender and save the file to your desktop. Then open the file in a text editor and around line 15 you'll see: &quot;build linkflags: /MACHINE:X64&quot; (or X32 if 32-bit). However, I don't think the later versions of Blender are available in 32-bit nowadays so it's almost certainly 64-bit anyway.